() , , ,

..1974 (Ern Rubik) 26 9 6 9 6

1980 300,000,000

(Ern Rubik) ..1974 HU170062 "" (Magic Cube) ..1975 ..1977

.. 1979 (Ideal Toys) ..1980 "" (Rubik's Cube) ..1980

"" "Seven Towns Limited" ..1984 US3655201 Larry Nichols (Terutoshi Ishigi) JP558192

2 1/8 (5.4 ..) 26 27 1 6 20

20 12 2 8 3

(8! 38 - 1) (12! 212 - 1)/2 = 43,252,003,274,489,856,000 (~4.3 1019) 43 (quintillion) 29

(speedcubing) 5 ..1982 (Minh Thai) 22.95 (World Cube Association) 14.52 ( 5 ) "" (Shotaro "Macky" Makisumi) 16 ..2004 14 8 ..2004 (Caltech) 12.11

..2004 (Stackmat timer)

..2007 (Kawasaki Heavy Industries) "Cube - kun"